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Effects of earthworm casts on sorption-desorption, degradation, and bioavailability of nonylphenol in soil

文献类型： 外文期刊

作者： Jiang, Lei 1 ; Yang, Yi 1 ; Jia, Lin Xian 1 ; Liu, Ying 1 ; Pan, Bo 1 ; Lin, Yong 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China

2.Minist Agr, Key Lab Integrated Pest Management Trop Crops, Haikou 571101, Hainan, Peoples R China

3.Hainan Univ, Coll Environm & Plant Protect, Haikou 570228, Hainan, Peoples R China

关键词： Nonylphenol; Earthwormcasts; Sorption-desorption; Degradation; Bioavailability

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN： 0944-1344

年卷期： 2018 年 25 卷 8 期

页码：

收录情况： SCI

摘要： Up to hundreds of milligrams per kilogram (dry weight) of nonylphenol (NP) reportedly entered the soil and sediment through the agricultural reuse of biosolids, pesticide application, etc. Organic pollutants in soil could not only further trigger groundwater contamination via leaching (that highly depends upon sorption-desorption and degradation phenomena) but also harm food safety by crop uptake (that mainly rests with the bioavailability of pollutants in soil). Thus, we first investigated the effects of earthworm casts (EWCs) on the sorption-desorption, degradation, and bioavailability of NP in soil under laboratory microcosm conditions, and then, analyzed the FT-IR spectra of EWC and soil samples (with and without EWC). The application of EWC could notably increase the sorption capacity of soils for NP and in turn significantly inhibited the desorption of NP from soil; responsively lengthened the half-time of NP in the soil; and reduced the uptake and translocation of NP in tomato seedlings and promoted their growth during the first 3 weeks. Finally, FT-IR spectra of EWC and soil samples indicated that the application of EWC increased the content of N, P, and organic matter in soil.

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